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How to install wheel covers 
Jack up the vehicle. 
While some wheel covers can be installed without removing lug nuts, you may often find that the lug nuts on your wheel are intended to help hold the wheel cover in place. If need to remove the lug nuts on the wheel, first loosen the lug nuts, then.
Always jack your vehicle up on solid, level surfaces like blacktop or concrete. Place jack stands beneath the vehicle once you jack it up for safety.